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External Disk Rescue-Partition lost while changing from NTFS to FAT32

I was using AOM Partition Manager to change the format type of a partition (from NTFS to FAT32) and after a day it get stucked and the process was interrupted on the 70%. The partition of the extenal disk with USB connection of 1.53GB disapeared in windows.

The partition seems to remain in NTFS. Which is the best way to rescue the data on the damaged partition (1 and 2) from the current disk structure? I run the SMART test at DiskHealth of partedmagic 7 and it passed.

If you used Aoemi Partition Assistant to convert the partition see if you can detect the partitions using it's partition recovery. Do a Fast Search and if that does not work do a Full Search. Double Click the found partitions. Do you see your files?

Because this was a bad conversion of a file system I am not sure you will be able to recover your files.

With quick analysis it said the partition can't be recovered. And it didn't showed the name of the partition neither named it as a partition. I kept the disk without using it. I would like to recover the information.

Using Testdisk there is a Deeper Search Option. If a partition is found highlight it and press the "P" key. Do you see your files? Also run Testdisk and select Advanced > Boot if this is a bootable disk. See if the boot sector is damaged.

If the Deeper Search does not find a partition then you can use Easeus Data Recovery or Minitools Data Recovery to scan the drive. They allow from 1 to 2 GB for free. If you do not want to purchase software there is a program with Testdisk called Photorec. This will recovery files in realtime to the folder to unzipped Testdisk to. You need at least the same amount of free space than what data you are recovering. Also all files recovered will have generic names with the correct extension. In Photorec be sure to choose the extensions you wish to recover or it will recover all files it finds.

I see the files with the advanced options. Can I use the undelete to recover them with the directory structure? By the way on windows with AOMEI only 170 MB are shown as be used on the disk. But as shown in testdisk 1571 MB are used of the partition to recover.

The photorec project a recovery time of 700 hours and without preserving the directory structure.

If there was a deleted partition you would see a D prefix before the partition but from your log it seems you have multiple bootable partitions. If you see the files in the Advanced Options that is good. You can select them with the ":" key and then use the upper case "C" key to copy the files. The default destination is the folder you unzipped Testdisk to. I would only copy a few at first to see if they can be opened or not. If you have an external drive with enough free space unzip Testdisk to the root of the external drive and launch it from there. Then you can use the lower case "a" key to select all files and folders. Press upper case "C" and then confirm the location for the files to be copied to your external drive. The directory structure will remain intact.

Hi John, I try copying a folder and the internal structure of other forlders was copied with the copy command of the advanced option, but not all the files were copied. Then I saw at the original disk and although it shows some information, it doesn't show it complete and is not foun on the deep analysis. Was it the way to copy the files?